|Year|Team|Games|Combined Tackles|Tackles|Assisted Tackles|Sacks|Forced Fumbles|Fumble Recoveries|Fumble Return Yards|Interceptions|Interception Return Yards|Yards per Interception Return|Longest Interception Return|Interceptions Returned for Touchdown|Passes Defended|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|2004|HOU|16|63|51|12|4.0|0|2|0|0|0|0|0|0|4|
|2005|HOU|12|35|24|11|4.0|2|0|0|0|0|0|0|0|2|
|2006|HOU|15|26|19|7|5.0|0|0|0|0|0|0|0|1|1|
|2008|KC|7|31|25|6|2.0|0|0|0|0|0|0|0|0|0|
|2008|SEA|2|1|1|0|0.0|0|0|0|0|0|0|0|0|0|
|2009|PHI|12|16|11|5|2.5|0|0|0|0|0|0|0|0|0|
|2010|TEN|16|58|44|14|12.5|2|0|0|0|0|0|0|0|0|
|2011|PHI|16|40|35|5|18.0|3|0|0|0|0|0|0|0|1|
|2012|PHI|11|26|21|5|5.5|2|0|0|0|0|0|0|0|1|
|2012|JAX|5|11|7|4|1.5|2|1|0|0|0|0|0|0|0|
|2013|JAX|16|40|31|9|7.5|3|0|0|0|0|0|0|0|0|
|Career||128|347|269|78|62.5|14|3|0|0|0|0|0|0|9|

Question: in what year did jason babin force at least 15 sacks?
Answer: 2011